Question

It is very kind _____ you to help me with my lessons because it is very difficult _____me to learn them well.

A．of； for

B．of； of

C．for；of

D．for； for

Answer 1

A

考查句型：It is +形容詞+介詞+sb to do的用法。形容詞為形容人的性格品質的詞，應用介詞of,形容詞為difficult,necessary等詞時，應用介詞for 。所以選A。